Isotopically Labeled Compounds

Medchemexpress LLC N,N-dimethyl-4-(phenyldiazenyl)aniline-d5 | 1398109-08-4 | MFCD22565739 | 99.0% | 230.32 g/mol | C14H10D5N3 | 25 MG

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Methyl yellow-d5 (N,N-dimethyl-4-(phenyldiazenyl)aniline-d5) is the deuterium-labeled isotopologue of methyl yellow supplied as a high-purity analytical reference standard. It is intended for use as a tracer or internal standard in mass spectrometry and other analytical workflows, and is provided with high isotopic enrichment and defined storage recommendations.

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Medchemexpress LLC (±)12(13)Epoxy-9Z-octadecenoic-9,10,12,13-d4 acid | 17966-13-1 | 99.0% | 300.47 | 25 UG

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(±)12(13)-EpOME-d4 is a deuterium labeled compound designed for research use. It can serve as a tracer and an internal standard in quantitative analysis methods such as NMR, GC-MS, or LC-MS. Deuteration may influence the pharmacokinetic and metabolic profiles of drugs.

• Used as a tracer
• Functions as an internal standard for quantitative analysis
• Applicable in NMR, GC-MS, or LC-MS
• Deuterium labeled compound

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Revvity Health Sciences Inc dCTP, [α-³²P]- 3000Ci/mmol 10mCi/ml EasyTide, 1 mCi

dCTP, [α-³²P]- 3000Ci/mmol 10mCi/ml EasyTide, 1 mCi

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Cambridge Isotope Laboratories L-THREONINE (15N, 98%), 0.25 G, 80681-09-0

L-THREONINE (15N, 98%), 0.25 G, 80681-09-0

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Revvity Health Sciences Inc dCTP, [α-³²P]- 3000Ci/mmol 10mCi/ml , 100 µCi

dCTP, [α-³²P]- 3000Ci/mmol 10mCi/ml , 100 µCi

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Revvity Health Sciences Inc Thyroxine, ([¹²⁵I]-T4), L-[¹²⁵I]-, 500µCi (18.5MBq), Specific Activity: 5700µCi (210MBq)/µg

Thyroxine, ([¹²⁵I]-T4), L-[¹²⁵I]-, 500µCi (18.5MBq), Specific Activity: 5700µCi (210MBq)/µg

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Medchemexpress LLC Ribitol-3-13C (adonitol-3-13C) | 488-81-3 | 99.7% | 153.14 g/mol | C4(13C)H12O5 | 1 MG

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Ribitol-3-13C is a stable isotope-labelled ribitol supplied as a crystalline standard for use in analytical and metabolic studies. It is intended for use as a tracer or internal standard in NMR, GC-MS, and LC-MS workflows and is provided in a microgram-scale package suitable for analytical applications.

• Contains a 13C label at the 3 position for isotope tracing.
• High reported purity of 99.7% for analytical reliability.
• Molecular weight approximately 153.14 g/mol for method calculations.
• Provided as a crystalline solid for easy handling and storage.
• Suitable as an internal standard for quantitative NMR, GC-MS, and LC-MS.
• Supplied in a 1 mg quantity appropriate for small-scale analyses.

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Medchemexpress LLC Triclocarban-d4 | 1219799-29-7 | 98.0% | 319.61 | C13H5D4Cl3N2O | 10 MG

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Triclocarban-d4 is the deuterium-labeled analogue of triclocarban used as an analytical standard and internal tracer for quantitative LC-MS, GC-MS, and NMR analyses. It is supplied as a white to off-white solid intended for method development, quantitation, and metabolic or environmental studies.

• Deuterium-labeled internal standard for quantitative LC-MS and GC-MS.
• High purity (98.0%) suitable for analytical applications.
• Supplied as a 10 mg solid for analytical preparation.
• Stable isotope label enables accurate quantitation and tracer studies.
• Recommended storage: powder -20°C (3 years) or 4°C (2 years).

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Medchemexpress LLC Acetaminophen-d3 | 60902-28-5 | MFCD06658893 | 99.0% | 154.18 g/mol | C8H6D3NO2 | 10 MG

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Acetaminophen-d3 is the deuterium-labeled analogue of acetaminophen used as a tracer and internal standard for quantitative analysis by NMR, GC-MS, and LC-MS. It is supplied as a high-purity solid suitable for analytical research applications.

• High-purity deuterium-labeled standard (99.0%).
• Intended for use as tracer or internal standard in NMR, GC-MS, and LC-MS quantitative analysis.
• Supplied as a solid for analytical workflows and small-scale assays.
• Stable when stored as a powder at -20°C for extended periods.

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Cambridge Isotope Laboratories MELATONIN (ACETYL-D3, 98%), 5 MG

MELATONIN (ACETYL-D3, 98%), 5 MG

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Cambridge Isotope Laboratories L-Phenylalanine (4-13C 99% 2 3 3 2 3 5 6-D7 98% 15N 98%) 0 1 g

L-Phenylalanine (4-13C 99% 2 3 3 2 3 5 6-D7 98% 15N 98%) 0 1 g

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Cambridge Isotope Laboratories L-SERINE (13C3, 99%; 15N, 99%), 0.1 G, 202407-34-9

L-SERINE (13C3, 99%; 15N, 99%), 0.1 G, 202407-34-9

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Medchemexpress LLC L-glutamine-d5 (L-glutamic acid 5-amide-d5) | 14341-78-7 | MFCD00144600 | 99.8% | 151.18 g/mol | C5H5D5N2O3 | 10 MG

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L-Glutamine-d5 is a deuterium-labeled analogue of L-glutamine supplied as a stable isotope standard for research applications, including metabolic studies and mass spectrometry. It is provided as a solid with high chemical and isotopic purity and is intended for research use only (not for human use).

• Deuterium-labeled isotopologue of L-glutamine.
• High purity (99.8%).
• Molecular weight approximately 151.18 g/mol.
• Chemical formula: C5H5D5N2O3.
• Supplied in small milligram pack sizes suitable for analytical standards.
• Store sealed, away from moisture and light; in solvent: -80°C (up to 6 months), -20°C (up to 1 month).

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Revvity Health Sciences Inc Ethylcarboxamidoadenosine, 5'-N-[Adenine-2,8-³H]-, 250µCi (9.25MBq)

Ethylcarboxamidoadenosine, 5'-N-[Adenine-2,8-³H]-, 250µCi (9.25MBq)

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Revvity Health Sciences Inc Triiodothyronine, L-3, 5, 3'-[¹²⁵I]-, 100 µCi (3.7 MBq), Specific Activity: 1080-1320 µCi (40-48.8 MBq)/µg

Triiodothyronine, L-3, 5, 3'-[¹²⁵I]-, 100 µCi (3.7 MBq), Specific Activity: 1080-1320 µCi (40-48.8 MBq)/µg

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